TermCymru

Results are displayed in English alphabetical order A-Z

Welsh: sgôr effeithlonrwydd ynni

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Plural: sgoriau effeithlonrwydd ynni

Definition: Gwerth rhifol i ddangos pa mor effeithlon o ran ynni yw eiddo, yn amrywio o 1 i 100, gyda sgoriau uwch yn cynrychioli mwy o effeithlonrwydd. Caiff y sgôr ei ddefnyddio yn sylfaen ar gyfer y raddfa A–G ('gradd effeithlonrwydd ynni') a ddangosir ar y Dystysgrif Perfformiad Ynni.

Notes: Sylwer bod angen gallu gwahaniaethu rhwng energy efficiency rating ac energy efficiency score.

Last Updated: 5 August 2025

English: energy efficiency standards

Welsh: safonau effeithlonrwydd ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 6 August 2008

English: energy efficient appliances

Welsh: offer sy'n arbed ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Definition: Neu 'offer rhad ar ynni' mewn rhai amgylchiadau.

Last Updated: 11 July 2007

English: energy efficient lighting

Welsh: bylbiau golau rhad-ar-ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 31 August 2010

English: energy efficient measure

Welsh: cam effeithlon o ran ynni

Status A

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 7 August 2013

English: energy efficient milk storage tanks

Welsh: tanc storio llaeth sy'n arbed ynni

Status C

Subject: Agriculture

Part of speech: Noun, Masculine, Singular

Definition: Tanciau llaeth sy’n defnyddio trydan o baneli solar ffotofoltaïg neu sy’n defnyddio trydan “oriau tawel” o’r grid.

Last Updated: 18 July 2018

English: Energy & Environment Sector

Welsh: Y Sector Ynni a'r Amgylchedd

Status C

Subject: Welsh Government posts and departments

Part of speech: Noun, Masculine, Singular

Last Updated: 1 November 2011

English: energy from waste projects

Welsh: prosiectau troi gwastraff yn ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 24 June 2003

English: energy generation

Welsh: cynhyrchu ynni

Status B

Subject: Planning

Part of speech: Verb

Last Updated: 7 October 2021

English: Energy Generation & Onshore Wind Policy Manager

Welsh: Rheolwr Polisi Cynhyrchu Ynni a Gwynt ar y Tir

Status C

Subject: Welsh Government posts and departments

Part of speech: Noun, Masculine, Singular

Last Updated: 13 May 2013

English: energy grass

Welsh: porfa ynni

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Last Updated: 1 June 2005

English: Energy Industries Council

Welsh: Cyngor y Diwydiannau Ynni

Status B

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Last Updated: 27 September 2018

English: energy-intensive

Welsh: ynni-ddwys

Status B

Subject: Environment

Part of speech: Adjective

Last Updated: 17 May 2012

English: Energy in Wales

Welsh: Ynni yng Nghymru

Status C

Subject: Economic development

Part of speech: Noun

Definition: Papur gorolwg Adolygiad o Bolisi Ynni yng Nghymru, Pwyllgor Datblygu Economoaidd

Last Updated: 24 September 2002

English: Energy in Wales - Overview paper

Welsh: Ynni yng Nghymru - Papur gorolwg

Status C

Subject: Environment

Definition: EDC 12-01(p4)

Last Updated: 16 August 2002

English: EnergyNet Wales

Welsh: EnergyNet Cymru

Status A

Subject: Environment

Part of speech: Neutral

Definition: Set up to maximise the value to the Welsh Economy from the Energy Industry.

Last Updated: 31 December 2008

English: energy optimization

Welsh: optimeiddio ynni

Status B

Subject: Environment

Part of speech: Verb

Definition: Defnyddio neu beidio â defnyddio ynni yn yr amgylchedd adeiledig er mwyn sicrhau'r manteision mwyaf posibl ar gyfer yr hinsawdd ac ar gyfer pobl fel ei gilydd.

Last Updated: 5 August 2020

English: energy payback time

Welsh: amser ad-dalu'r ynni

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: Yr amser sydd ei angen i gynhyrchu'r ynni a losgwyd i lunio ac adeiladu'r tyrbin/pwerdy.

Last Updated: 17 November 2011

English: Energy Performance Certificate

Welsh: Tystysgrif Perfformiad Ynni

Status B

Subject: Environment

Part of speech: Noun, Feminine, Singular

Plural: Tystysgrifau Perfformiad Ynni

Definition: Dogfen sy’n ofynnol yn y DU pan gaiff eiddo ei adeiladu, ei werthu neu ei osod, sy’n dangos pa mor effeithlon o ran ynni yw’r eiddo ar raddfa o A (mwyaf effeithlon) i G (lleiaf effeithlon).

Last Updated: 5 August 2025

English: energy performance industry

Welsh: diwydiant perfformiad ynni

Status C

Subject: Economic development

Part of speech: Noun, Masculine, Singular

Context: At hynny, mae gan Gymru ddiwydiant perfformiad ynni cryf a chystadleuol iawn.

Last Updated: 5 September 2019

English: Energy Performance of Buildings Directive

Welsh: y Gyfarwyddeb Perfformiad Ynni Adeiladau

Status B

Subject: Europe

Part of speech: Noun, Feminine, Singular

Notes: Teitl cwrteisi ar gyfer cyfeirio at gyfarwyddeb Ewropeaidd, nad yw ar gael yn Gymraeg.

Last Updated: 26 March 2025

English: Energy Policy Branch

Welsh: Y Gangen Polisi Ynni

Status C

Subject: Welsh Government posts and departments

Part of speech: Noun, Feminine, Singular

Last Updated: 15 February 2010

English: energy-positive

Welsh: effeithlon o ran ynni

Status C

Subject: Environment

Part of speech: Adjective

Last Updated: 21 September 2017

English: energy price cap

Welsh: cap ar brisiau ynni

Status B

Subject: Finance and statistics

Part of speech: Noun, Masculine, Singular

Context: Mae’r cap ar brisiau ynni, a godwyd ym mis Hydref, wedi helpu i warchod cartrefi rhag rhywfaint o effeithiau gwaethaf y cynnydd mewn costau yn y farchnad nwy a thrydan domestig dros fisoedd y gaeaf, cynnydd sydd wedi achosi i nifer mawr o gyflenwyr fynd i ddwylo’r gweinyddwyr.

Last Updated: 7 November 2024

English: Energy Price Guarantee

Welsh: Y Warant Pris Ynni

Status B

Subject: Finance and statistics

Part of speech: Noun, Feminine, Singular

Notes: Cynllun gan Lywodraeth y DU. Sylwer mai enw benywaidd yw "gwarant" ac felly bod angen treiglo ar ôl y fannod.

Last Updated: 30 March 2023

English: Energy Project Manager

Welsh: Rheolwr Prosiect Ynni

Status C

Subject: Personnel

Part of speech: Noun, Masculine, Singular

Last Updated: 23 September 2005

English: energy recovery

Welsh: adfer ynni

Status C

Subject: Environment

Part of speech: Verb

Last Updated: 15 March 2006

English: Energy Retail Association

Welsh: Cymdeithas Manwerthu Ynni

Status C

Subject: Economic development

Part of speech: Noun, Feminine, Singular

Definition: ERA

Last Updated: 18 September 2008

English: Energy Review

Welsh: Adolygiad Ynni

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Definition: adroddiad terfynol yr Uned Perfformiad ac Arloesi

Last Updated: 1 October 2002

English: Energy review outline programme

Welsh: Rhaglen fras yr adolygiad ynni

Status C

Subject: Environment

Part of speech: Noun

Definition: EDC 14-01(p3)

Last Updated: 12 July 2002

English: energy saving

Welsh: rhad-ar-ynni

Status C

Subject: Environment

Part of speech: Adjective

Definition: eg energy saving bulbs

Last Updated: 8 December 2004

English: energy saving light bulbs

Welsh: bylbiau golau sy'n arbed ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 6 August 2008

English: energy saving recommended - logo

Welsh: logo arbed ynni

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 1 October 2008

English: Energy Saving Trust

Welsh: Yr Ymddiriedolaeth Arbed Ynni

Status A

Subject: Economic development

Part of speech: Noun, Feminine, Singular

Definition: EST

Last Updated: 12 October 2004

English: Energy Saving Trust Advice Centre Wales

Welsh: Canolfan Gynghori Ymddiriedolaeth Arbed Ynni Cymru

Status A

Subject: Economic development

Part of speech: Proper noun, Feminine, Singular

Context: Enw swyddogol.

Last Updated: 28 January 2004

English: Energy Saving Wales

Welsh: Arbed Ynni Cymru

Status C

Subject: Environment

Part of speech: Verb

Definition: Strategaeth arbed ynni Llywodraeth y Cynulliad

Last Updated: 20 September 2004

English: Energy Sector

Welsh: Sector Ynni

Status C

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 10 January 2003

English: Energy Sector Branch

Welsh: Cangen y Sector Ynni

Status C

Subject: Personnel

Part of speech: Noun, Feminine, Singular

Last Updated: 1 December 2003

English: energy security

Welsh: diogelu ffynonellau ynni

Status C

Subject: Environment

Part of speech: Verb

Last Updated: 17 April 2009

English: Energy Security Bill

Welsh: Y Bil Diogeledd Ynni

Status B

Subject: Titles of legislation

Part of speech: Noun, Masculine, Singular

Notes: Teitl cwrteisi ar ddarn o ddeddfwriaeth ddrafft gan Lywodraeth y DU sydd ar gael yn Saesneg yn unig.

Last Updated: 19 May 2022

English: energy security objectives

Welsh: amcanion diogelu ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 1 October 2008

English: Energy Summit

Welsh: Uwchgynhadledd Ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Last Updated: 16 January 2012

English: Energy Supplier Obligation

Welsh: Rhwymedigaeth ar Gyflenwyr Ynni

Status B

Subject: Housing

Part of speech: Noun, Feminine, Singular

Last Updated: 13 January 2012

English: energy supply companies

Welsh: cwmnïau cyflenwi ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Definition: ESCo

Last Updated: 1 October 2008

English: Energy Technology List

Welsh: Rhestr Technoleg Ynni

Status C

Subject: Environment

Part of speech: Noun, Feminine, Singular

Definition: ETL

Last Updated: 4 January 2012

English: energy transition

Welsh: trawsnewid i ynni adnewyddadwy

Status B

Subject: Environment

Part of speech: Verb

Definition: Newid strwythurol sylfaenol yn y system ynni ar lefel genedlaethol neu fyd-eang. Yn y cyfnod modern, bydd y term hwn yn cyfeirio'n ddieithriad at y newid o fod yn system ynni sy'n dibynnu ar danwyddau ffosil i fod yn system ynni sy'n dibynnu ar ynni adnewyddadwy.

Notes: Sylwer y gellid bod angen addasu'r term wrth ei ddefnyddio i gyfeirio at gyfnodau hanesyddol gwahanol.

Last Updated: 6 July 2023

English: Energy Usage Streamlined Subsidy Scheme

Welsh: Y Cynllun Cymorthdaliadau Symlach ar gyfer Defnydd Ynni

Status B

Subject: Environment

Part of speech: Noun, Masculine, Singular

Last Updated: 2 February 2023

English: Energy Vampiers

Welsh: Fampirod Ynni

Status C

Subject: Environment

Part of speech: Noun, Plural

Definition: Un o raglenni 'Cadwch Gymru'n Daclus'.

Last Updated: 5 April 2011

English: energy vectors

Welsh: ffordd o drosglwyddo ynni

Status C

Subject: Planning

Part of speech: Noun, Feminine, Singular

Plural: ffyrdd o drosglwyddo ynni

Context: Mae angen datblygu ffyrdd newydd o drosglwyddo a storio ynni.

Last Updated: 17 January 2020

English: energy.wales

Welsh: ynni.cymru

Status C

Subject: ICT

Part of speech: Noun, Masculine, Singular

Definition: Name of website.

Last Updated: 11 September 2012

TermCymru

Share this page